Phase LHX Series - Page 82

75 | P a g e
MESSAGE
DESCRIPTION / COMMENTS
PARAM
RELATED
(1)
NO AUTO
RESTARTS
(2)
Input Fault
Sudden high input current or internal fault. Input IGBT desat protection
triggers this fault.
Input Overload
Triggered instantly when input current is greater than 2x rated current or when
input current is greater than 1.4x rated current for three seconds, based on
Class 10 Trip Curve. Check for reduced input voltage as this may increase
input current. May also be caused by high current in the motor circuit.
IP Hall Sense Hi
Current exceeded the maximum rating of the input CM board. May be caused
by low input voltage, a locked rotor, or internal fault.
Low Input Voltage
Input voltage has fallen below a level for safe operation of the drive. Will trip
on startup if input voltage is below 190VAC for 230V systems or below
440VAC for 460V systems.
Low Suction Fault
PSI measured below 1.4.40 LOW PRESSURE FAULT LEVEL for longer
than specified 1.4.39 SUCTION PRESSURE TIME.
X
Motor Overload
Output current has exceeded the value set by parameter 1.1.9 OVER
CURRENT LIMIT. Check motor load. Ensure that 1.1.18 OVERCURRENT
DERATE ENABLE is set to YES.
X
OP Hall Sense Hi
Current exceeded the maximum rating of the output CM board. May indicate a
fault in the motor circuit or internal fault.
Output CM
Connection Fault
Cables to output current measurement (CM) boards disconnected. Power
system down and check cable to output CM board.
X
Output Fault
High current as measured by the IGBT. Check for short circuit on output lines
and load. Output IGBT desat protection triggers this fault.
Output Overload
Indicates a large and sudden overcurrent on the output module. Check motor
circuit for faults. The overcurrent may be of a very short duration that cannot
be captured by amp meters. Ensure that 1.1.17 OVERLOAD DERATE
ENABLE is set to YES. If an output filter is installed, verify it is wired correctly.
X
Over Temperature
Internal temperature of IGBT has exceeded 113°F. Reduce ambient temp.
Check fan operation and ventilation openings for obstruction. Ensure that
1.1.19 OVER TEMPERATURE DERATE ENABLE is set to YES.
X
PLL Fault
(Phase Lock Loop)
Unable to lock onto the frequency of incoming power. Caused by grid
distortion, unstable frequency, or an undersized generator. Cycling power
OFF/ON can clear the fault if caused by an isolated incident.
Sensor Connection
Fail
4-20mA or 10VDC analog signal is not present on Control Terminals. This
could indicate failure of the analog sensor or a disconnected sensor cable.
Temp Sense Fault
Temperature sensor on the IGBT has failed or its cable is disconnected. Turn
power off and check cables to IGBTs.
Under Current
Motor current has fallen below the value set by parameter 1.1.10 UNDER
CURRENT. Commonly used to detect a dry well condition.
X
1 = Fault may be related to an adjustable parameter. Always check the value of the parameter to eliminate nuisance tripping.
2 = No automatic restarts allowed. The drive has shut down due to a potentially dangerous condition. Drive will remain OFF until fault is
cleared. Turn power off and troubleshoot the system before restarting.